EP0385061B1 - Dispositif de machine à tisser, pour la mesure de la tension de châine - Google Patents

Dispositif de machine à tisser, pour la mesure de la tension de châine Download PDF

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Publication number
EP0385061B1
EP0385061B1 EP90100266A EP90100266A EP0385061B1 EP 0385061 B1 EP0385061 B1 EP 0385061B1 EP 90100266 A EP90100266 A EP 90100266A EP 90100266 A EP90100266 A EP 90100266A EP 0385061 B1 EP0385061 B1 EP 0385061B1
Authority
EP
European Patent Office
Prior art keywords
measurement
fabric
tension
measuring
warp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90100266A
Other languages
German (de)
English (en)
Other versions
EP0385061B2 (fr
EP0385061A2 (fr
EP0385061A3 (fr
Inventor
Markus Dipl.-Ing. Gielen (Fh)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6374908&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0385061(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0385061A2 publication Critical patent/EP0385061A2/fr
Publication of EP0385061A3 publication Critical patent/EP0385061A3/fr
Application granted granted Critical
Publication of EP0385061B1 publication Critical patent/EP0385061B1/fr
Publication of EP0385061B2 publication Critical patent/EP0385061B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/108—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on a single support, e.g. a glider
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/12—Controlling warp tension by means other than let-off mechanisms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means

Definitions

  • the present invention relates to a device on a weaving machine for measuring the warp tension, in which a measuring device can be subjected to pressure or force in accordance with the tension of the warp threads.
  • Devices of this type are required in order, in particular in connection with a readjustment of the warp tension, to always ensure an advantageous tension of the warp threads with respect to the fabric to be produced and in particular to prevent the warp threads from breaking.
  • the pressure conditions determined are disadvantageously dependent on the wrap angle and, furthermore, on the prevailing temperature, so that, apart from the possible impairment of the warp threads, the tension thereof can only be determined relatively inaccurately.
  • Another known measuring method for measuring the warp thread tension relates to determining the force which the warp threads exert on the match tree.
  • the match tree serves in a known manner as a deflecting means for the warp threads, which - depending on the tension - act on the match tree with a certain pressure force.
  • Another known device for measuring the warp tension is that one or more warp threads are inserted in a meandering guide between three measuring rollers. The pressure on the measuring rollers or their deflection is then determined.
  • the disadvantage of this measuring method is an increased friction of the warp threads within the measuring device and furthermore, if the warp thread breaks, it must be re-inserted in the measuring device in a complex manner.
  • the present invention is therefore based on the object of developing the device mentioned at the outset in such a way that the warp thread tension can be measured in a reliable manner with much greater accuracy regardless of temperature influences and largely independently of a wrap angle.
  • the invention is characterized in that the measuring device is arranged in the area of the finished fabric according to the binding point of the fabric, the fabric tension proportional to the warp thread tension being measurable after the binding point.
  • the measurement is now carried out with the measuring device in the area of the finished fabric, specifically in the course of the fabric behind the binding point after the sheet stop.
  • the warp thread tension can also be determined directly, because the fabric tension in this area is directly proportional to the warp thread tension, so that with this arrangement of the measuring device a significantly more precise measurement of the warp thread tension is possible without impairing the warp threads.
  • the arrangement and the measuring device according to the invention itself is relatively independent of temperature influences.
  • the measuring device according to the invention in the arrangement beyond the binding point on the fabric, does not interfere with the weaving process and the operation on the part of the weaver.
  • the measuring device according to the invention is characterized in that otherwise disturbing friction influences, in particular in the case of sensitive tissues, are now avoided. Rather, the device according to the invention can itself be used for deflecting the fabric onto a fabric tree, which is necessary anyway, so that no additional deflecting rollers or other deflecting means are required in this area of the fabric.
  • the measuring device according to the invention can be permanently installed on the loom, whereby the risk of damage to the measuring device is largely avoided.
  • a multiplicity of measuring principles can be used; two different measuring methods are particularly preferred according to the invention.
  • One measuring method relates, according to claim 2, to the measurement of the bearing forces on a shaft arranged beyond the binding point.
  • the second measuring method relates to a pressure measurement on the part of a lateral surface of a shaft arranged beyond the binding point, which is at least partially wrapped around by the tissue.
  • the propagation wave itself is provided as a location for the measuring device.
  • the device according to the invention for detecting the tissue tension consists of an approximately cylindrical tube, in the circumferential surface of which an elongated groove is incorporated and in this elongated groove a measuring bar is arranged, the surface of which is approximately flush with the circumferential surface of the cylinder tube is.
  • this measuring tongue which are closest to the groove-shaped incision of the cylindrical tube, are pulled down slightly, i.e. they are below the top edge of this cylindrical tube. It is then provided that the middle part of this measuring beam lies approximately at the same height in the surface line of this cylindrical tube. This ensures that the measuring beam only supports at a single point, namely in the area of its entire center line.
  • the center line can only be seen as ideals, in reality there is a certain wrap angle, i. H. the tissue running over the measuring bar is therefore preferably carried by the central part of the measuring bar, while the outer parts of the measuring bar are no longer pressurized by the tissue.
  • the measuring bar has a length of about 150 mm here because there are standardized force sensors.
  • Fig. 1 it is shown how the chain 2 is woven from a warp beam 1 and is deflected here via a match tree 3.
  • the shedding is then carried out in a manner known per se, the sheet 5 being arranged in the shed 4, so that the fabric thus processed is formed in the binding point 6.
  • the fabric 7 finished after the binding point 6 is then drawn off via a spreading shaft 8 and fed to a fabric feeder device 10, not shown.
  • the measuring device 9 for measuring the tissue tension is now arranged in the propagation shaft 8.
  • the measuring device 9 is arranged in the area between the propagation wave and the binding point 6.
  • the measuring device 9 in another embodiment of the present invention it is provided that the measuring device 9 according to the invention behind the propagation shaft 8, i.e. that is arranged between the spreading shaft 8 and the tissue feeding device 10.
  • the tissue is guided over the measuring device 9 in such a way that a certain force is exerted on the measuring device 9 by the tissue.
  • the force should preferably be exerted on the measuring device 9 perpendicular to the tissue course or approximately perpendicular to the tissue course.
  • the measuring device 9 therefore requires a slight deflection of the finished tissue around the measuring device 9 so that a force is exerted on the force-sensitive parts of the measuring device.
  • the main advantage is thus achieved that a disturbance in the warp thread course, i.e. So in front of the compartment 4 in the direction of the warp beam 1 is avoided because the measuring device is not arranged in this area. Furthermore, the advantage is achieved that only a slight wrap around the measuring device is required. This means that a disturbance of the tissue is prevented from the outset due to this slight wrapping.
  • the main advantage here is that it is no longer the sensitive warp threads that have to be passed through such a measuring device, but an inherently stable fabric, which is therefore not susceptible to malfunction. Broken warp threads no longer matter.
  • FIG. 2 shows a cross section through a measuring device 9 according to the invention.
  • a radially extending groove 13 is milled into a tube 11 with a cylindrical outer surface 12.
  • outer surface 12 of the tube 11 does not necessarily have to be cylindrical, it is also possible to use elliptical outer surfaces or hollow tubes, in the outer surface of which a corresponding groove 13 is machined in the radial direction.
  • Any curved surface is therefore sufficient as a deflection device, with the proviso that a radial groove must be incorporated into this surface, in which a measuring bar 14 is arranged.
  • the measuring bar 14 is designed as a profile bar, and its material preferably consists of an aluminum, steel or plastic material.
  • this measuring beam 14 It is important that the surface 23 of this measuring beam 14 is machined in such a way that this surface 23 has a low coefficient of friction, so that inadmissible tissue wear is avoided as a result.
  • a center line 25 (FIG. 4) is approximately flush with the lateral surface 12 of the tube 2. This ensures an undisturbed course of the tissue, because the tissue 7 then runs according to FIG. 4 in part on the two adjacent bearing surfaces of the tube 2 on this side and beyond the groove 13, and on the other hand this tissue 7 only touches the measuring bar 14 in the region of the longitudinal direction trending center line 25.
  • edges 15 of the profile of the measuring beam 14 are thus pulled down under the lateral surface 12 of the tube 11, so that these edges 15 do not come into contact with the tissue 7.
  • the measuring bar 14 is arranged above a support 17 with a certain play 21, which is preferably in the range of a few hundredths of a millimeter.
  • the connection between the measuring beam 14 and the carrier 17 arranged underneath takes place via two lateral bending beams 18, only one side of the mounting of the measuring beam 14 on the carrier 17 being described in the following for the sake of simplicity, because the opposite side is exactly identical.
  • the bending beam 18 consists of any steel, aluminum or plastic material on which a strain gauge is glued in the longitudinal direction of the bending beam 18.
  • the bending beam 18 itself is connected here via clamping jaws 19 on the one hand to the measuring beam 14 and on the other hand to the carrier 17.
  • the clamping jaws in this case have screws which engage in corresponding threaded holes (not shown in more detail) on the one hand on the measuring beam 14 and on the other hand on the support 17.
  • strain gauges not shown in each case, arranged on the bending beam 18 are connected via cable connections, not shown, to an amplifier, not shown, which is fastened in corresponding fastening bores 22 in the region of a recess 16 in the tube 11.
  • the radial groove 13 widens to a central recess 16, in which the carrier 17 and the required fastening means are arranged.
  • the carrier 17 has bores 20, through which screws 24 engage, which are screwed into threaded bores 26 in the tube 11.
  • the bending beams are also mounted parallel to a horizontal between the measuring beam 14 and the support 17.
  • the bie beams 18 with the strain gauges arranged thereon are omitted and that corresponding pressure sensors are arranged in the area of the game 21 between the underside of the measuring bar 14 and the associated surface of the carrier 17.
  • displacement transducers are also possible, e.g. B. inductive displacement sensors, capacitive displacement sensors or optical displacement sensors.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Claims (10)

1. Dispositif sur une machine de tissage pour mesurer la tension de la chaîne, dans lequel un dispositif de mesure (9) est apte à être sollicité par une pression ou une force en fonction de la tension des fils de chaîne (2), caractérisé en ce que le dispositif de mesure (9) est disposé, dans la zone du tissu fini (7), après le point de liage (6) de celui-ci, la tension du tissu proportionnelle à la tension des fils de chaîne étant mesurable après ledit point de liage.
2. Dispositif selon la revendication 1, caractérisé en ce que les forces d'appui sur un arbre disposé dans la zone située au-delà du point de liage (6) du tissu (7) sont mesurées, lesquelles forces sont proportionnelles à la tension des fils de chaîne.
3. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de mesure (9) est disposé de façon fixe sur le métier à tisser, dans l'arbre élargisseur (8) prévu pour le tissu (7).
4. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de mesure (9) est disposé dans la zone située entre l'arbre élargisseur (8) et le point de liage (6).
5. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de mesure (9) est disposé entre l'arbre élargisseur (8) et le dispositif de rétrécissement de tissu (10).
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que le dispositif de mesure (9) se compose d'un tube sensiblement cylindrique (11) dans la surface latérale (12) duquel est réalisée une rainure oblongue (13) et est disposée une barre de mesure (14) qui comporte des jauges d'allongement et dont la surface forme sensiblement une surface plane avec la surface latérale (12) du tube (11).
7. Dispositif selon la revendication 6, caractérisé en ce que les arêtes (15) de la barre de mesure (14) sont dirigées vers le bas ou enfoncées, au bord de la rainure (13).
8. Dispositif selon la revendication 6, caractérisé en ce que la barre de mesure (14) est disposée avec un faible jeu (21) au-dessus d'un support (17) et est reliée à ce support (17) par l'intermédiaire de barres de flexion latérales (18) sur lesquelles sont collées des jauges d'allongement.
9. Dispositif selon la revendication 6, caractérisé en ce que la rainure (13) prévue dans le tube cylindrique (11) présente, sous la forme d'un élargissement, une cavité (16) dans laquelle sont disposés un support (17) pour la barre de mesure (14), un amplificateur et d'autres dispositifs supplémentaires et moyens de fixation.
10. Dispositif selon l'une des revendications 6 à 9, caractérisé en ce que le dispositif de mesure (9) comprenant le tube cylindrique (11) et la barre de mesure (14) est conçu comme un capteur de pression ou comme un dispositif de mesure de déplacement inductif, capacitif ou optique.
EP90100266A 1989-02-25 1990-01-08 Dispositif de machine à tisser, pour la mesure de la tension de châine Expired - Lifetime EP0385061B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3905881 1989-02-25
DE3905881A DE3905881C2 (de) 1989-02-25 1989-02-25 Vorrichtung zum Messen der Kettspannung in einer Webmaschine

Publications (4)

Publication Number Publication Date
EP0385061A2 EP0385061A2 (fr) 1990-09-05
EP0385061A3 EP0385061A3 (fr) 1991-04-17
EP0385061B1 true EP0385061B1 (fr) 1994-03-02
EP0385061B2 EP0385061B2 (fr) 1997-03-05

Family

ID=6374908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100266A Expired - Lifetime EP0385061B2 (fr) 1989-02-25 1990-01-08 Dispositif de machine à tisser, pour la mesure de la tension de châine

Country Status (4)

Country Link
US (1) US5025837A (fr)
EP (1) EP0385061B2 (fr)
JP (1) JPH02242951A (fr)
DE (2) DE3905881C2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1273785B (it) * 1994-02-18 1997-07-10 Nuovo Pignone Spa Dispositivo perfezionato per misurare la tensione di ordito in un telaio tessile
EP0717135B1 (fr) 1994-12-13 2010-06-16 ITEMA (Switzerland) Ltd. Dispositif de mesure de la tension de chaîne sur un métier à tisser
DE59511108D1 (de) * 1994-12-13 2010-07-29 Itema Switzerland Ltd Vorrichtung zur Messung der Kettspannung an einer Webmaschine
DE29612041U1 (de) * 1995-09-25 1996-09-12 Rueti Ag Maschf Tragbare Vorrichtung zum Messen der Kettspannung eines Gewebes
US6928652B1 (en) * 1998-05-29 2005-08-09 Webtv Networks, Inc. Method and apparatus for displaying HTML and video simultaneously
US6938270B2 (en) * 1999-04-07 2005-08-30 Microsoft Corporation Communicating scripts in a data service channel of a video signal
US7174562B1 (en) * 1999-12-20 2007-02-06 Microsoft Corporation Interactive television triggers having connected content/disconnected content attribute
US6766524B1 (en) * 2000-05-08 2004-07-20 Webtv Networks, Inc. System and method for encouraging viewers to watch television programs
EP1312708B1 (fr) * 2001-11-16 2006-02-01 Sultex AG Dispositif de mesure pour mesurer la tension d'une bande dans un métier à tisser et un métier à tisser equipé d'un tel dispositif de mesure
DE50205747D1 (de) * 2001-11-16 2006-04-13 Sultex Ag Rueti Messvorrichtung zur Messung der Gewebespannung in einer Webmaschine und Webmaschine mit einer derartigen Messvorrichtung
ATE302298T1 (de) * 2003-03-25 2005-09-15 Empa Testmaterialien Ag Verfahren zur prüfung der aggregate, in denen die wasch-, reinigungs- und trocknungsprozesse ausgeführt werden durch behandlung und deren auswirkung auf textile flächengebilde
US9021529B2 (en) * 2004-07-15 2015-04-28 Microsoft Technology Licensing, Llc Content recordation techniques
DE102005019906B3 (de) * 2005-04-29 2006-03-30 Lindauer Dornier Gmbh Webmaschine mit lösbarer Verbindung zwischen einem Antriebsmittel und dem Kettbaum einer Webmaschine
CZ303018B6 (cs) * 2011-08-10 2012-02-29 Technická univerzita v Liberci Zpusob a zarízení k merení tkacího odporu na tkacím stroji
DE102013222679A1 (de) 2013-11-07 2015-05-07 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Verfahren zum Messen der Gewebespannung in einer Webmaschine

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DE1573952B2 (de) * 1966-11-18 1971-04-29 Wool Industries Research Associat tion, Leeds, York (Großbritannien) Faden oder bandspannungsmesser fuer webstuehle oder sonsti ge textilmaschinen
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DE2630410A1 (de) * 1976-07-06 1978-01-12 Betr Forsch Inst Angew Forsch Vorrichtung zur messung der spannungsverteilung ueber die breite von biegsamen baendern, vor allem von stahlbaendern beim kaltwalzen
DE2724334A1 (de) * 1977-05-28 1978-12-07 Schlafhorst & Co W Vorrichtung zum messen der wickelspannung bahnfoermigen gutes
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HU175887B (en) * 1978-10-25 1980-11-28 Budapesti Mueszaki Egyetem Weaving process and loom for carrying out the process
US4428244A (en) * 1981-11-20 1984-01-31 Sumitomo Light Metal Industries, Ltd. Apparatus for measuring internal stress of strip during rolling process
CH657392A5 (de) * 1982-07-13 1986-08-29 Zellweger Uster Ag Verfahren und vorrichtung zur messung der spannung an textilen flaechengebilden auf textilmaschinen, insbesondere webmaschinen.
CS229490B1 (en) * 1982-12-29 1984-06-18 Vojtech Buran Woven fabric tension pick-up
JPS61201053A (ja) * 1985-02-26 1986-09-05 日産自動車株式会社 織機の経糸送出し装置
BE902865A (nl) * 1985-07-12 1986-01-13 Picanol Nv Werkwijze voor het regelen bij weefmachines van de plaats van de zogenaamde doeklijn en borstboom en borstboomsturing hierbij aangewend
CH668443A5 (de) * 1985-07-26 1988-12-30 Zellweger Uster Ag Verfahren und vorrichtung zur messung der spannung einer fadenschar oder eines gewebes an einer textilmaschine.
DE3724829A1 (de) * 1987-07-27 1989-02-09 Dornier Gmbh Lindauer Vorrichtung zur messung der kettfadenspannung
JPS6437486U (fr) * 1987-08-27 1989-03-07

Also Published As

Publication number Publication date
EP0385061B2 (fr) 1997-03-05
JPH054456B2 (fr) 1993-01-20
DE3905881A1 (de) 1990-09-06
US5025837A (en) 1991-06-25
DE59004714D1 (de) 1994-04-07
JPH02242951A (ja) 1990-09-27
EP0385061A2 (fr) 1990-09-05
EP0385061A3 (fr) 1991-04-17
DE3905881C2 (de) 1999-08-19

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